Machine for making sheet-metal molding



Patented Nov. 30,1897.

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(No Model.)

MACHINE FOR MAKING SHEET METAL MOLDING. 'No. 594,383.

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UNIT D STATES PATENT OFFICE.

OHARLES'T. OHILDERS, OF GALESBURG, ILLINOIS.

MACHINE FOR MAKING SHEET-METAL MOLDING.

SPECIFICATION forming part of Letters Patent No. 594,383, dated November 30, 1897. Application filed April 10, 1897. Serial No. 631,553. (No model.)

To all whom it may concern.-

Be it known that 1, CHARLES T. (humans, a citizen of the United States, residing at Galesburg, in the county of Knox and State of Illinois, have invented certain new and useful Improvements in Machines for Making Sheet-Metal Moldings; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to'make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Figure l is a side elevation of a machine for making sheet-metal moldings embodying my improvements. Fig. 2 is a transverse vertical sectional view on the line X X of Fig. 1. Fig. 3 is a similar View through the dies, showing the parts adjusted for making longitudinally-curved molding. Fig. 4 is a plan View on the line Y Y of Fig. 2.

A designates the base or stand upon which my machine is shown as mounted and supported. The latter consists of a body B, having legs I) Z), rigidly secured to said support A, and a swinging arm 0, pivoted to an upright B. 1

0n the body B are supported a series of dies D D D, the upper surfaces or edges of which may be of any desired configuration, according to the cross-sectional form of the molding to be produced. The die D, which is shown as arranged between the dies D D is supported stationarily in place, while the other dies D D are pivotally supported, so as to be capable of adjustment toward and from said central die. Preferably each of said dies D D is provided on its outer face with a pair of cars or lugs 01, between which extend the upper ends of arms E, rigidly secured to the body B, said arms and lugs being connected by bolts F.

G designates set-screws extending through suitable passages in the arms E and adapted to take against and engage with the pivotbolt F, whereby the dies D D can be secured in any adjusted position. The lower ends of the dies D D are supported by adjustable wedge-shaped bars G, so that the pivot-bolts F are relieved from all strain when the mabelow said dies D D the lower ends thereof at such times resting directly on the body B.

The central fixed die D is provided with a transversely-extending pin or bolt H, which projects beyond both of the outer faces of said die into contact with the inner faces of the-adjustable dies D D said pin serving as an additional pivot or fulcrum about which said adjustable dies can rock.

K designates an upper reciprocating die, it being rigidly secured to the forward end of the aforesaid vibrating arm 0 and adapted to contact with the upper edge or surface of the stationary central die D.

Power is imparted to the vibrating arm 0 and the die carried thereby from a treadle L, connected with said arm or with a collar 0, surrounding said arm, by a link or rod M, and a spring N is interposed between the rear end of said vibrating arm 0 and one of the legs I) of the body, one or both ends of said spring are adjustable so that the tension thereof can be readily adjusted as may be desired.

The manner of using my improvements will be readily understood from the drawings and the above description. The lower dies D D D are first arranged in the parallel position shown in Fig. 2, and a sheet of metal being placed thereon the upper die is set in motion and by a series of blows the desired cross-sectional configuration is given to the molding. Then in order to obtain the desired longitudinal curve the set-screws G are loosened and the movable dies D D properly adjusted, the adjustable supporting-bars G being properly positioned. Then the previously grooved sheet is passed between the upper and lower dies and caused to assume the desired form.

P designates a gage or guide bar which is rigidly supported to a rearwardly-extending rod 19, the latter being mounted in a guide Q,

rigid with the base or bed B, and adapted to be secured in position by means of a setscrew q.

\Vhat I claim is 1. The combination with a stationary base, of a die, D, stationarily mounted on said base, dies, D, D pivotally supported on arms extending upwardly from the base on opposite sides of the first said die, D, whereby said dies, D, D are adapted to extend parallel to the intermediate stationary die, or at an angle to said stationary die, bars, G, adjustable toward and from said central die, D, for supporting the lower end of said dies, D, D when in other than a vertical position, and a vertically-vibratable die mounted above those aforesaid, substantially as set forth.

2. In a machine for making sheet-metal moldings, the combination with a base, of the die, D, mounted on said base, the dies, D, D arranged on opposite sides of said base, and each provided on its outer surface above its lower end with a pair of lugs or ears, arms rigid with the base and extending upward between said ears on the dies, D, D pivot-bolts connecting said ears and arms, and a verticallyvibratable hammerlike die mounted above those aforesaid, substantially as set forth.

3. In a metal-bending machine, the combination of a base-plate or bed, a die, D, secured on said bed, dies, D, D pivotallysupported on opposite sides of said die, D, and adapted to rest on the base-plate or bed when in a position parallel to the first said die, adj nstable supporting-bars, G, mounted 011 the base and movable toward and from said die, D, the upper surfaces of said bars being adapted to support the dies, D, D when out of parallelism with the first said die, I), and a Vertically-vibratable die mounted above those aforesaid, substantially as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES T. CIIILDERS.

\Vitnesses:

W11. D. GODFREY, \VJI. D. McCoNNELL. 

